SMC NIT402-002 Hydraulics Pneumatics

( Brand: Smc ), ( Manufacturer Part Number: NIT402-002 ), ( Part Type: Hydraulic Pneumatic )

Review SMC Nit402002 Used

The **SMC NIT402-002 (or NIT402002)** is a high-performance, compact solenoid valve designed for precision control in industrial automation, fluid power systems, and pneumatic applications. Part of SMC s reliable **NIT series**, this normally closed (NC) valve operates on a 24VDC signal, delivering consistent and efficient actuation for a wide range of air or gas control tasks. Constructed from durable materials, including a robust stainless steel or high-grade plastic body, the NIT402-002 ensures long-term reliability even in demanding environments where exposure to dust, moisture, or temperature fluctuations is a concern. Its compact, modular design allows for seamless integration into existing pneumatic circuits, making it ideal for applications in robotics, packaging machinery, medical devices, and automated assembly lines.

The valve features a **direct-acting, pilot-operated mechanism**, ensuring rapid response times and minimal air consumption, which optimizes energy efficiency while maintaining precise control over flow rates. With a standard **G1/8" (NPT) or G1/8" (Metric) connection**, it accommodates a variety of piping configurations, and its **IP65-rated enclosure** provides protection against solid particles and low-pressure water jets, making it suitable for both cleanroom and industrial settings. The NIT402-002 operates within a pressure range of **0.2 to 10 bar (29.0 to 145.0 psi)**, ensuring compatibility with standard compressed air systems while delivering consistent performance across varying loads. Its **normally closed (NC) default state** enhances safety by preventing unintended air release, reducing the risk of equipment damage or injury during power failures or system malfunctions.

For enhanced functionality, the valve can be paired with SMC s **optional accessories**, such as position indicators, electrical connectors, or mounting brackets, allowing for customization based on specific application requirements. The NIT402-002 also incorporates **low-noise operation**, minimizing acoustic disturbances in sensitive environments, while its **self-diagnostic capabilities** (via integrated status LEDs) simplify troubleshooting and maintenance. Whether deployed in a high-speed production line, a laboratory instrument, or an automated material handling system, this solenoid valve exemplifies SMC s commitment to precision engineering, durability, and ease of integration, making it a versatile choice for engineers and technicians seeking reliable pneumatic control solutions.

The **SMC NIT402-002** (or **NIT402002**) is a compact, single-phase, 240V AC motor with a built-in encoder, commonly used in automation, robotics, and industrial applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the SMC NIT402-002**

1. **Compact and Lightweight Design**

The motor is small and easy to integrate into tight spaces, making it ideal for applications where space is limited. Its compact form factor allows for flexible installation in robotic arms, CNC machines, or automated systems.

2. **High Precision with Encoder Integration**

The built-in encoder (typically incremental or absolute) provides real-time position feedback, enabling precise control over motion. This is crucial for applications requiring accurate positioning, such as pick-and-place systems or linear actuators.

3. **High Torque-to-Size Ratio**

Despite its small size, the motor delivers sufficient torque for many automation tasks, making it suitable for lightweight to moderately heavy loads. This efficiency helps reduce the need for additional gearing in some applications.

4. **Compatibility with SMC s Automation Ecosystem**

The motor is designed to work seamlessly with other SMC components, such as drives (e.g., SMC s servo or stepper drives), controllers, and feedback devices. This compatibility simplifies system integration and reduces compatibility issues.

5. **Durable and Reliable**

SMC motors are known for their robust construction, often featuring sealed bearings and corrosion-resistant materials. This makes them suitable for industrial environments with dust, moisture, or temperature variations (though specific environmental ratings should be verified).

6. **Easy Installation and Maintenance**

The motor is typically plug-and-play with standard mounting options (e.g., flange or shaft coupling). Maintenance is minimal, as the encoder and motor are integrated, reducing potential points of failure.

7. **Versatile Voltage and Speed Options**

The 240V AC version offers a balance between power and efficiency for many industrial applications. Depending on the load, it can operate at various speeds, providing flexibility in design.

8. **Cost-Effective for Mid-Range Applications**

While not as high-end as some servo motors, the NIT402-002 offers a cost-effective solution for applications where high precision and compact size are prioritized over extreme performance.

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### **Cons of the SMC NIT402-002**

1. **Limited Torque for Heavy Loads**

The motor s torque output is moderate, meaning it may struggle with very heavy or high-inertia loads without additional gear reduction or a larger motor. For applications requiring high torque, a larger motor (e.g., SMC s NIT series with higher ratings) or a gearbox may be necessary.

2. **Dependence on External Drive for Full Control**

While the encoder provides feedback, the motor itself does not include a built-in drive or amplifier. You ll need to pair it with an external servo or stepper drive (e.g., SMC s SD or SG series), which adds to the system cost and complexity.

3. **Potential for Heat Dissipation Issues**

In high-duty-cycle applications or environments with poor ventilation, the motor may generate heat. While SMC motors are generally well-cooled, continuous operation at maximum load could require additional cooling measures.

4. **Encoder Limitations**

The encoder s resolution and type (incremental vs. absolute) may not meet the needs of high-precision applications. For example, incremental encoders require homing routines, while absolute encoders are more expensive. Verify the encoder s specifications against your application s requirements.

5. **Limited Customization**

The NIT402-002 is a standard model with fixed specifications (e.g., voltage, speed, torque). If your application requires non-standard parameters (e.g., custom shaft lengths, different encoder types), you may need to modify the motor or source a different model.

6. **Dependence on SMC s Support Ecosystem**

While SMC provides good documentation and support, troubleshooting or finding replacement parts may be easier if you re already using other SMC components. If you re working with a mixed-vendor system, integration could require additional effort.

7. **Noise and Vibration in High-Speed Applications**

At very high speeds, some compact motors (including this one) can generate noise or vibration. If your application operates at high RPMs, test the motor under real conditions to ensure it meets noise requirements.

8. **Potential for Higher Long-Term Costs**

While the upfront cost is reasonable, the need for an external drive, additional sensors (e.g., limit switches), or cooling solutions could increase total system costs over time.

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### **Conclusion**

The **SMC NIT402-002** is an excellent choice for applications requiring a **compact, precise, and reliable motor** with encoder feedback. It excels in **automation, robotics, and light-to-moderate industrial tasks** where space efficiency and accuracy are critical. However, it is not ideal for **high-torque, heavy-load, or extreme-environment applications** without additional components.

The motor s strengths lie in its **integration with SMC s ecosystem, ease of use, and cost-effectiveness for mid-range precision tasks**. Its weaknesses such as **limited torque, dependency on external drives, and potential heat issues** are manageable with proper system design but may require compromises in some applications.

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### **Recommendation**

- You need a **compact, encoder-equipped motor** for precise motion control in automation or robotics.

- Your application involves **light to moderate loads** and does not require extreme torque.

- You are already using **SMC components** (drives, controllers, etc.), as this ensures seamless integration.

- Your budget allows for an **external drive** (e.g., SMC s servo or stepper drive) to complement the motor.

- You prioritize **ease of installation and maintenance** over maximum torque or customization.

- Your application requires **high torque or heavy loads** in this case, consider a larger SMC motor (e.g., NIT series with higher ratings) or a gearbox.

- You need **absolute positioning without homing routines** an absolute encoder model may be necessary.

- Your environment involves **extreme temperatures, high humidity, or corrosive conditions** verify the motor s IP rating (e.g., IP65) and consult SMC for suitable alternatives.

- You are working with **non-SMC components** and may face integration challenges test compatibility or explore other motor brands with broader ecosystem support.

- Your application demands **ultra-high precision or sub-micron resolution** higher-end servo motors (e.g., from Bosch Rexroth or Yaskawa) may be more appropriate.

For most **mid-range automation, robotic, or light industrial applications** where compact size and encoder feedback are priorities, the **SMC NIT402-002 is a solid and cost-effective choice**. Pair it with the appropriate SMC drive and ensure your system accounts for any potential heat or torque limitations. If your requirements push the motor s boundaries, evaluate alternatives or supplementary components (e.g., gearing) to meet your needs.

Details:

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part #: nit402002 price

• $313.63

specifications generapneumati:

• brand: Smc
• mpn: Nit402-002
• part type: Hydraulic Pneumatic

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offer generapneumati:

• started: March 23, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0

general generapneumati:

• condition: Used
• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics

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• policy: Returns Accepted
• method: Money back
• paid by: Buyer
• time: 30 Days

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• # reviews: 195739
• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%

shipping generapneumati:

• service: Standard
• type: Fixed
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• cost: $12.90
• transit: 24-37 Days

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